This minor release includes 9 security fixes following the security policy:
net/http: improper sanitization of Transfer-Encoding header
The HTTP/1 client accepted some invalid Transfer-Encoding headers as indicating
a "chunked" encoding. This could potentially allow for request smuggling, but
only if combined with an intermediate server that also improperly failed to
reject the header as invalid.
This is CVE-2022-1705 and https://go.dev/issue/53188.
When httputil.ReverseProxy.ServeHTTP was called with a Request.Header map
containing a nil value for the X-Forwarded-For header, ReverseProxy would set
the client IP as the value of the X-Forwarded-For header, contrary to its
documentation. In the more usual case where a Director function set the
X-Forwarded-For header value to nil, ReverseProxy would leave the header
unmodified as expected.
This is https://go.dev/issue/53423 and CVE-2022-32148.
Thanks to Christian Mehlmauer for reporting this issue.
compress/gzip: stack exhaustion in Reader.Read
Calling Reader.Read on an archive containing a large number of concatenated
0-length compressed files can cause a panic due to stack exhaustion.
This is CVE-2022-30631 and Go issue https://go.dev/issue/53168.
encoding/xml: stack exhaustion in Unmarshal
Calling Unmarshal on a XML document into a Go struct which has a nested field
that uses the any field tag can cause a panic due to stack exhaustion.
This is CVE-2022-30633 and Go issue https://go.dev/issue/53611.
encoding/xml: stack exhaustion in Decoder.Skip
Calling Decoder.Skip when parsing a deeply nested XML document can cause a
panic due to stack exhaustion.
The Go Security team discovered this issue, and it was independently reported
by Juho Nurminen of Mattermost.
This is CVE-2022-28131 and Go issue https://go.dev/issue/53614.
encoding/gob: stack exhaustion in Decoder.Decode
Calling Decoder.Decode on a message which contains deeply nested structures can
cause a panic due to stack exhaustion.
This is CVE-2022-30635 and Go issue https://go.dev/issue/53615.
path/filepath: stack exhaustion in Glob
Calling Glob on a path which contains a large number of path separators can
cause a panic due to stack exhaustion.
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2022-30632 and Go issue https://go.dev/issue/53416.
io/fs: stack exhaustion in Glob
Calling Glob on a path which contains a large number of path separators can
cause a panic due to stack exhaustion.
This is CVE-2022-30630 and Go issue https://go.dev/issue/53415.
go/parser: stack exhaustion in all Parse* functions
Calling any of the Parse functions on Go source code which contains deeply
nested types or declarations can cause a panic due to stack exhaustion.
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2022-1962 and Go issue https://go.dev/issue/53616.
Add some PRINT_PLIST_AWK statements to do the standard transformations
that I used to do by hand. With this change, "make print-PLIST" outputs
the correct PLIST without a need for manually fixing some lines.
This minor release includes 4 security fixes following the security policy
<https://go.dev/security>:
- crypto/rand: rand.Read hangs with extremely large buffers
On Windows, rand.Read will hang indefinitely if passed a buffer larger
than 1 << 32 - 1 bytes.
Thanks to Davis Goodin and Quim Muntal, working at Microsoft on the Go
toolset, for reporting this issue.
This is CVE-2022-30634 and Go issue https://go.dev/issue/52561.
- crypto/tls: session tickets lack random ticket_age_add
Session tickets generated by crypto/tls did not contain a randomly
generated ticket_age_add. This allows an attacker that can observe TLS
handshakes to correlate successive connections by comparing ticket ages
during session resumption.
Thanks to GitHub user @nervuri for reporting this.
This is CVE-2022-30629 and Go issue https://go.dev/issue/52814.
- os/exec: empty Cmd.Path can result in running unintended binary on
Windows
If, on Windows, Cmd.Run, cmd.Start, cmd.Output, or cmd.CombinedOutput
are executed when Cmd.Path is unset and, in the working directory, there
are binaries named either "..com" or "..exe", they will be executed.
Thanks to Chris Darroch (chrisd8088@github.com), brian m. carlson (
bk2204@github.com), and Mikhail Shcherbakov (https://twitter.com/yu5k3)
for reporting this.
This is CVE-2022-30580 and Go issue https://go.dev/issue/52574.
- path/filepath: Clean(`.\c:`) returns `c:` on Windows
On Windows, the filepath.Clean function could convert an invalid path to
a valid, absolute path. For example, Clean(`.\c:`) returned `c:`.
Thanks to Unrud for reporting this issue.
This is CVE-2022-29804 and Go issue https://go.dev/issue/52476.
go1.18.2 (released 2022-05-10) includes security fixes to the syscall package,
as well as bug fixes to the compiler, runtime, the go command, and the
crypto/x509, go/types, net/http/httptest, reflect, and sync/atomic packages.
See the Go 1.18.2 milestone on our issue tracker for details.
This minor release includes three security fixes following the security policy:
- encoding/pem: fix stack overflow in Decode
A large (more than 5 MB) PEM input can cause a stack overflow in Decode,
leading the program to crash.
Thanks to Juho Nurminen of Mattermost who reported the error.
This is CVE-2022-24675 and https://go.dev/issue/51853.
- crypto/elliptic: tolerate all oversized scalars in generic P-256
A crafted scalar input longer than 32 bytes can cause P256().ScalarMult or
P256().ScalarBaseMult to panic. Indirect uses through crypto/ecdsa and
crypto/tls are unaffected. amd64, arm64, ppc64le, and s390x are unaffected.
This was discovered thanks to a Project Wycheproof test vector.
This is CVE-2022-28327 and https://go.dev/issue/52075.
- crypto/x509: non-compliant certificates can cause a panic in Verify on macOS in Go 1.18
Verifying certificate chains containing certificates which are not compliant
with RFC 5280 causes Certificate.Verify to panic on macOS.
These chains can be delivered through TLS and can cause a crypto/tls or
net/http client to crash.
Thanks to Tailscale for doing weird things and finding this.
This is CVE-2022-27536 and https://go.dev/issue/51759.
Due to how close the freeze is, this will not be the default for the next
quarterly release.
There are lots of news, including support for Generics. Read the release
notes for details.
